4 IQ-SENSE
13-6
ET 200S Distributed I/O System
EWA-4NEB 780602402-12
Reflection light probe
Transmitter
Object
Switching status 0: No object detected, i.e.
the object is not in the light beam. The
receiver does not detect any light.
Switching status 1: Object detected, i.e. the
object is in the light beam. The receiver
detects light.
Receiving
stations
Transmitter
Receiving
stations
Reflection light probe
Figure 13-2
Reflection light probe
Reflection light barrier
Object
Switching status 0: No object detected, i.e.
the object is not in the light beam. The
receiver detects light.
Switching status 1: Object detected, i.e. the
object is in the light beam. The receiver
does not detect any light.
Transmitter
Receiving
stations
Transmitter
Receiving
stations
Reflection light barrier
Figure 13-3
Reflection light barrier
13.1.4
Differential travel parameter
Features
”Signal flutter” may occur as a result of interference at the reflection light probe or
during the production process. The measured value will swing around the switching
threshold of 100% (object detected -- object not detected). This flutter at the
switching threshold can be prevented with the differential travel parameter. This
will ensure a stable output signal at the sensor.
The ranges 5/ 10/ 20/ 50% can be configured as differential travel.
Prerequisites
The differential travel parameter can only be configured for reflection light probes
with background shielding.
Содержание SIMATIC ET 200S
Страница 42: ...Product Overview 1 16 ET 200S Distributed I O System EWA 4NEB 780602402 12 ...
Страница 64: ...Brief Instructions on Commissioning ET 200S 2 22 ET 200S Distributed I O System EWA 4NEB 780602402 12 ...
Страница 112: ...Configuration Options 3 48 ET 200S Distributed I O System EWA 4NEB 780602402 12 ...
Страница 232: ...Commissioning and Diagnostics 6 72 ET 200S Distributed I O System EWA 4NEB 780602402 12 ...
Страница 244: ...General Technical Specifications 7 12 ET 200S Distributed I O System EWA 4NEB 780602402 12 ...
Страница 274: ...Interface Modules 8 30 ET 200S Distributed I O System EWA 4NEB 780602402 12 ...
Страница 538: ...4 IQ SENSE 13 18 ET 200S Distributed I O System EWA 4NEB 780602402 12 ...
Страница 564: ...Address Space of the Input and Outputs of the ET 200S C 4 ET 200S Distributed I O System EWA 4NEB 780602402 12 ...
Страница 574: ...Response Times D 10 ET 200S Distributed I O System EWA 4NEB 780602402 12 ...
Страница 580: ...Special Measures for Interference Free Operation F 4 ET 200S Distributed I O System EWA 4NEB 780602402 12 ...
Страница 600: ...Product Information on the Use of subassemblies modules in a Zone 2 Hazardous Area 2 A5E00352937 02 ...